multi node tree picker if it is empty - Razor

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Johan Plesner Hamann 105 posts 199 karma points

Jul 10, 2011 @ 12:51

Multi-Node Tree Picker if it is empty..

hey guys

I have a Multi-Node Tree Picker and it is empty, this gives an error.

    foreach (var x in item.refKursus) 
   {
     var n = @Model.NodeById(@x.InnerText);
     var nSta =@n.kursusStartDato.ToString("dd");
     var nEnd = @n.slutDato.ToString("dd. MMMM yyyy");
     <em class="date">@nSta<text>.</text> - @nEnd</em>
   }

Error loading Razor Script BlockHolding.cshtml
Input string was not in a correct format.

What can solve this? I will try if else but null and "" gives me an error.

Error loading Razor Script BlockHolding.cshtml
Operator '!=' cannot be applied to operands of type 'umbraco.MacroEngines.DynamicXml' and 'string

Many thanks

/Johan

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Bert 128 posts 251 karma points

Jul 10, 2011 @ 12:58

 @if (@Model.HasProperty("mntpicker") && @Model.GetProperty("mntpicker").Value != String.Empty){
        <ul>
         @foreach (XElement elem in Model.mntpicker.BaseElement.Elements("nodeId"))
         {
           var theNodeInSideThePicker = @Model.NodeById(elem.Value);         
           <li>
             @theNodeInSideThePicker.Name
           </li>
         }
        </ul>
}

Check first if the property exists and has a value
Run over the xml inside the propertyvalue
Get the nodes inside the picker by those ID's
Do your stuff

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Johan Plesner Hamann 105 posts 199 karma points

Jul 10, 2011 @ 13:05

Thank you Bert, it was just what was needed!

my code is now:

@if (@item.HasProperty("refKursus") && @item.GetProperty("refKursus").Value != String.Empty)
{

  foreach (var x in item.refKursus) 
  {
  
      var n = @Model.NodeById(@x.InnerText);
      var nSta =@n.kursusStartDato.ToString("dd");
      var nEnd = @n.slutDato.ToString("dd. MMMM yyyy");
      <em class="date">@nSta<text>.</text> - @nEnd</em>
  }
}

/Johan

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maanehunden 61 posts 105 karma points

Sep 20, 2012 @ 10:29
0
Her's my 5 cents
```
@if (@item.HasValue("refKursus"))
{
    // do your stuff
}
```
Hope it will help some one (c:
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